Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5249177 | Structure for preventing dislocation of a spring in an optical disk cartridge | Kunihito Kamakura, Seiichi Ohta, Chihiro Aoki, Yasushi Hiramatsu | 1993-09-28 |
| 5090078 | Optical disk storage container and cleaner | Kunihito Kamakura, Seiichi Ohta, Chihiro Aoki, Yasushi Hiramatsu | 1992-02-25 |
| 4639294 | Process for production sorbic acid | Noboru Kamei, Kinjiro Ikeda, Keishi Aoyama | 1987-01-27 |